Oscillatory Event-Related Brain Dynamics

Softcover Nachdruck of the original 1. Auflage 1994
ISBN: 978-1-4899-1309-8
Verlag: Springer US

Buch, Englisch, Band 271, 468 Seiten, Paperback, Format (B × H): 178 mm x 254 mm, Gewicht: 895 g

Reihe: NATO Science Series A:

How does the brain code and process incoming information, how does it recog­ nize a certain object, how does a certain Gestalt come into our awareness? One of the key issues to conscious realization of an object, of a Gestalt is the attention de­ voted to the corresponding sensory input which evokes the neural pattern underly­ ing the Gestalt. This requires that the attention be devoted to one set of objects at a time. However, the attention may be switched quickly between different objects or ongoing input processes. It is to be expected that such mechanisms are reflected in the neural dynamics: Neurons or neuronal assemblies which pertain to one object may fire, possibly in rapid bursts at a time. Such firing bursts may enhance the synaptic strength in the corresponding cell assembly and thereby form the substrate of short-term memory. However, we may well become aware of two different objects at a time. How can we avoid that the firing patterns which may relate to say a certain type of move­ ment (columns in V5) or to a color (V 4) of one object do not become mixed with those of another object? Such a blend may only happen if the presentation times be­ come very short (below 20-30 ms). One possibility is that neurons pertaining to one cell assembly fire syn­ chronously. Then different cell assemblies firing at different rates may code different information.

Zielgruppe

Research

Autoren/Hrsg.

Pantev, Christo

Lütkenhöner, Bernd

Elbert, Thomas

Fachgebiete

• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Chirurgie Neurochirurgie
• Naturwissenschaften Physik Angewandte Physik Biophysik
• Naturwissenschaften Biowissenschaften Tierkunde / Zoologie
• Interdisziplinäres Wissenschaften Wissenschaften Interdisziplinär Neurowissenschaften, Kognitionswissenschaft
• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Klinische und Innere Medizin Neurologie, Klinische Neurowissenschaft

Inhaltsverzeichnis

Introductory Talk.- Introductory Remarks.- A Comparative Survey of Event Related Brain Oscillations.- Physiologic and Epileptic Oscillations in a Small Invertebrate Network.- Cortico-Hippocampal Interplay: Synopsis of a Theory.- What Is the Contribution of Axonal Conduction Delay to Temporal Structure in Brain Dynamics?.- Coherent Assembly Dynamics in the Cortex: Multineuron Recordings, Network Simulations, and Anatomical Considerations.- Temporal Aspects of Information Processing in Areas V1 and V2 of the Macaque Monkey.- Oscillations and Synchrony in the Visual Cortex: Evidence for Their Functional Relevance.- Oscillatory and Non-Oscillatory Synchronizations in the Visual Cortex of Cat and Monkey.- Event Related Changes in the 40 Hz Electroencephalogram in Auditory and Visual Reaction Time Tasks.- Attentional Effects on Image-Motion Related Potentials and Spectral Perturbations.- Retinal and Cortical Oscillatory Responses to Patterned and Unpatterned Visual Stimulation in Man.- Low Temporal Frequency Desynchronization and High Temporal Frequency Synchronization Accompany Processing of Visual Stimuli in Anaesthetized Cat Visual Cortex.- High-Frequency Activity (600 Hz) Evoked in the Human Primary Somatosensory Cortex: a Survey of Electric and Magnetic Recordings.- The Transient Auditory Evoked Gamma-Band Field.- Stimulus Frequency Dependence of the Transient Oscillatory Auditory Evoked Responses (40 Hz) Studied by Electric and Magnetic Recordings in Human.- Gamma-Band Responses Reflect Word/Pseudoword Processing.- Time- and Frequency-Domain Analysis of Auditory Evoked Fields.- Electrocortical Rhythms in the Attentive Cat: Phenomenological Data and Theoretical Issues.- Models for the Neuronal Implementation of Selective Visual Attention Based on the Temporal Structure of Neural Signals.- 20 Hz Bursts of Activity in the Cortico-Thalamic Pathway During Attentive Perception.- SSR-Modulation During Slow Cortical Potentials.- Synchronous Oscillations in Sensorimotor Cortex of Awake Monkeys and Humans.- Event-Related Desynchronization (ERD) and 40-Hz Oscillations in a Simple Movement Task.- Subcortical P300-40-Hz Response of the Cat Brain.- Stimulus-Related Oscillatory Responses in the Auditory Cortex of Cats.- Detection of Unaveraged Spontaneous and Event Related Electrophysiological Activities from Focal Regions of the Cerebral Cortex in the Swine.- Cognition and Local Changes in Brain Oscillations.- Tuning and Filtering in Associative Learning.- Possibilities of Functional Brain Imaging Using a Combination of MEG and MRT.